E-Learning Readiness Assessment Using Machine Learning Methods

Assessing e-learning readiness is crucial for educational institutions to identify areas in their e-learning systems needing improvement and to develop strategies to enhance students' readiness. This paper presents an effective approach for assessing e-learning readiness by combining the ADKAR model and machine learning-based feature importance identification methods. The motivation behind using machine learning approaches lies in their ability to capture nonlinearity in data and flexibility as data-driven models. This study surveyed faculty members and students in the Economics faculty at Tlemcen University, Algeria, to gather data based on the ADKAR model's five dimensions: awareness, desire, knowledge, ability, and reinforcement. Correlation analysis revealed a significant relationship between all dimensions. Specifically, the pairwise correlation coefficients between readiness and awareness, desire, knowledge, ability, and reinforcement are 0.5233, 0.5983, 0.6374, 0.6645, and 0.3693, respectively. Two machine learning algorithms, random forest (RF) and decision tree (DT), were used to identify the most important ADKAR factors influencing e-learning readiness. In the results, ability and knowledge were consistently identified as the most significant factors, with scores of ability (0.565, 0.514) and knowledge (0.170, 0.251) using RF and DT algorithms, respectively. Additionally, SHapley Additive exPlanations (SHAP) values were used to explore further the impact of each variable on the final prediction, highlighting ability as the most influential factor. These findings suggest that universities should focus on enhancing students' abilities and providing them with the necessary knowledge to increase their readiness for e-learning. This study provides valuable insights into the factors influencing university students' e-learning readiness.

Overview of the Healthcare Systems of the Maghreb Countries: Issues and Progress

Objectives: To provide an update overview on the current status of healthcare systems in the Maghreb region (Algeria, Morocco, and Tunisia) and to emphasize the progress made in the midst of the challenges facing these countries. Method(s): A descriptive comparative approach of healthcare systems in the three countries, based on data from sources with an established methodology, including descriptive healthcare data from the WHO database. Result(s): The population of the Maghreb will increase from 102 million to 132 million by 2050. The current population is mostly centered in Algeria and Morocco, accounting for 77%. Annual healthcare expenditure per capita is 447.9$, 776.8$ and 854.6$ in Morocco, Tunisia and Algeria, respectively. The average infant mortality rate per 1000 live improved to 10.9 in Tunisia, 16.8 in Morocco and 18.9 in Algeria. Maternal mortality rates have dropped to 43 and 48.5/100 000 births in Tunisia and Algeria, respectively while remaining relatively high in Morocco: 72.6. Number of hospital beds/1000 inhabitants is only 1.1 in Morocco, 1.9 and 2.9 in Algeria and Tunisia, respectively. The number of physicians/1000 people was 0.73 in Morocco, 1.3 in Tunisia and 1.72 in Algeria. This remains considerably low compared to the 3.9/1000 in Europe. The Maghreb countries are currently facing an exodus of physicians, mainly to France, which represents 7.1% and 10.7% of Tunisians and Moroccans, respectively, and more than 24% for Algerians. The Maghreb countries were very early mobilized (governments, ministries of health, civil society) to fight against COVID-19 and have successfully controlled the pandemic, according to pre-established control strategies and the strongly commitment of health professional. Conclusion(s): Despite the considerable progress made, the Maghreb countries still face major challenges. Physicians migration, rising cost of care and endemic infectious disease outbreaks constitute a huge hurdle on the already overburdened and resilient healthcare systems.Copyright © 2023

Enoxaparin Sodium Biosimilar in the Prophylactic Treatment of Veinous Thromboembolism and Thromboembolic Disease: Prophyvar Study

Objectives: Varenox is the first locally manufactured and approved biosimilar in Algeria. It is an enoxaparin sodium (ES) with established good analytical characterization and manufacturing quality control. The aim of the PROPHYVAR study was to generate real-life data in routine practices and to assess the safety and tolerability in the prophylaxis of venous thromboembolism (VTE). Method(s): This is an observational, prospective, multicenter study, conducted between April 2021 and May 2022. The primary safety outcome was the incidence of Adverse Events (AEs) related to the study drug. A sample size of 500 patients was calculated to estimate the proportion of patients with AEs. Assuming that approximately 10% will be lost to follow-up or not evaluable, 550 patients were needed to describe the impact of Varenox use. Result(s): The study was conducted in 25 different sites in Algeria, in 4 therapeutic areas: ICU, orthopedic surgery, obstetrics and nephrology;550 patients were included and received at least one injection of Varenox. The mean age was 47 years, women in majority (62.5%). The patients were overweight or obese (53%), with a history of arterial hypertension (25%), diabetes (7.5%) and renal failure (6.4%). Reasons for hospitalization were mainly fracture (15.5%), pregnancy (8.3%), COVID-19 (7%) or cancer (7%). The majority of patients were treated at prophylactic dose of 0.4ml (80%) or 0.6ml (10%). The median duration of follow-up was 24 days. A total of 38 patients experienced at least one AE (6.9%, CI95=[4.9%;9.4%]). Related AEs were reported in 10 patients (1.8%), mainly in nephrology (N=7 arterio-venous fistula). VTE events were reported in 6 patients (1.1%, CI95=[0.2%;2%]). Conclusion(s): This study suggests that Varenox is safe in the prophylaxis of VTE. To our knowledge this is the first large study describing the use of ES in current medical practice in Algeria.Copyright © 2023

Estimation of Parameters and Stability Analysis of Coronavirus Pandemic

Despite ranking amongst the highest in medical systems in Africa and spending a substantial amount on health sector than other African nations, Algeria suffered a major blow in the first wave of the Covid-19 pandemic. Vaccine hesitancy also affected the country adversely in subsequent waves of the disease. This study estimates the number of Covid-19 cases for Algeria in January 2022 using two numerical methods Multi-step Differential Transform Method (MsDTM) and Repeated MsDTM. Stability analysis of the pandemic for the country has also been discussed in the paper.

Seroprevalence of COVID-19 in Oran: Cross-Sectional Study.

The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was introduced in Algeria in March 2020. This study aimed to estimate the seroprevalence of SARS-CoV-2 infection in Oran, Algeria, and to identify factors associated with seropositivity. This was a cross-sectional seroprevalence study conducted between 7 and 20 January 2021 across all 26 municipalities in the province of Oran. The study employed a random cluster sampling technique stratified by age and sex to select participants from households, who were then administered a rapid serological test. The overall seroprevalence and specific seroprevalences by municipality were calculated, and the number of COVID-19 cases in Oran was estimated. The correlation between population density and seroprevalence was also examined. Among the participants, 422 (35.6%; 95% confidence interval [CI], 32.9 to 38.4) had a positive serological test for SARS-CoV-2, and eight municipalities had seroprevalence rates above 73%. We found a strong positive correlation between population density and seroprevalence (r = 0.795, P < 0.001), indicating that areas with higher population density had higher numbers of positive COVID-19 cases. Our study provides evidence of a high seroprevalence of SARS-CoV-2 infection in Oran, Algeria. The estimated number of cases based on seroprevalence is much higher than the number of cases confirmed by PCR. Our findings suggest that a large proportion of the population has been infected with SARS-CoV-2, highlighting the need for continued surveillance and control measures to prevent further spread of the virus. IMPORTANCE This is the first and only seroprevalence study of COVID-19 conducted in the general population in Algeria prior to the national vaccination campaign against COVID-19. The significance of this study lies in its contribution to our understanding of the spread of the virus in the population before the implementation of the vaccination program.

Ethnobotanical study on the use of medicinal plants with antiviral interest, case of SARS-CoV-19, in the region of Seraidi (Annaba, north-east Algeria)

The taxonomic diversity and the richness of the region of Seraidi (North-East Algeria) in medicinal plants, as well as the appearance of diseases of viral origin, in particular, the current pandemic of SARS-CoV-2, led us to the realization of an ethnobotanical survey of plants with antiviral interests. The survey was conducted based on a pre-established quiz, with 120 people from different categories of the population of Seraidi, with the aim of listing the medicinal plants used in the treatment of viral diseases and collecting as much information as possible on this subject. After analyzing, the information provided by the people interviewed, we listed 32 species belonging to 20 families, of which the Lamiaceae family is the most represented. Older women are the most affected by the use of plants;people without a higher intellectual level have the most knowledge about the use of plants with antiviral interest. The leaf is the most widely used organ, in the form of a decoction or infusion, administered orally.

The Differential Effects of Oil Prices on the Development of Renewable Energy in Oil-Importing and Oil-Exporting Countries in Africa

The shift to renewable sources of energy has become a critical economic priority in African countries due to energy challenges. However, investors in the development of renewable energy face problems with decision making due to the existence of multiple criteria, such as oil prices and the associated macroeconomic performance. This study aims to analyze the differential effects of international oil prices and other macroeconomic factors on the development of renewable energy in both oil-importing and oil-exporting countries in Africa. The study uses a panel vector error correction model (P-VECM) to analyze data from five net oil exporters (Algeria, Angola, Egypt, Libya and Nigeria) and five net oil importers (Kenya, Ethiopia, Congo, Mozambique and South Africa). The study finds that higher oil prices positively affect the development of renewable energy in oil-importing countries by making renewable energy more economically competitive. Economic growth is also identified as a major driver of the development of renewable energy. While high-interest rates negatively affect the development of renewable energy in oil-importing countries, it has positive effects in oil-exporting countries. Exchange rates play a crucial role in the development of renewable energy in both types of countries with a negative effect in oil-exporting countries and a positive effect in oil-importing countries. The findings of this study suggest that policymakers should take a holistic approach to the development of renewable energy that considers the complex interplay of factors, such as oil prices, economic growth, interest rates, and exchange rates.

COVID-19 monthly pandemic evolution in Algeria

Our study's objective was to retrospectively evaluate the pandemic Coronavirus Infection Disease first appeared in 2019 (COVID-19) in Algeria from July 2020 until February 2022 by studying the evolution and relationship between three variables: the number of new cases, the number of new deaths, and the number of cases hospitalized in intensive care. Data were obtained from "Our world in Data Organisation" (https://ourworldindata.org/coronavirus) on 01 March 2022. They were proceeded by descriptive and multivariate analysis. The correlation between the three variables and the analysis of individual principal components (PCA) were conducted. The number of new cases shot up the month of January 2022 with 33685 cases, the peak number of cases in intensive care was recorded in July 2021 with 1261 cases whereas the number of new deaths reached its peak in the month of August 2021 with 1015 cases. A significant linear dependence has been identified between the number of new cases and the number of cases in intensive care (R2>0.5). The PCA analysis allowed us to distinguish the months of August 2020, November 2020, July 2021, August 2021, September 2021, and January 2022. They were characterized by high levels of new confirmed cases, new deaths and/or cases in intensive care. During the study period, the pandemic COVID-19 in Algeria passed by three waves characterized by peaks in the number of new cases and new deaths.

THE MICROPRUDENTIAL STRESS TESTING FOR BANKING SYSTEM. A STUDY CASE ON ALGERIAN PRIVATE BANK, USING ACCOUNTING APPROACH

The aim of this article is to highlight the importance and effectiveness of stress testing as part of microprudential policy. We focus on microprudential stress testing to assess financial stability, the resilience and solvency of one important private bank in Algeria in the face of liquidity risk. Our empirical analysis adopts a bottom-up approach based on an accounting method. It studies the relationship between the bank solvency ratio (ratio cook) and bank portfolios, such as loans to the construction, trade, industry, and automotive sectors. Microeconomic stress tests assess the credit risk of a bank's loan portfolio by bottom-up accounting approach, applying eleven pessimistic and plausible multi-variable scenarios with potential risks. The tests introduce several types of microeconomic shocks into the scenarios, which are designed to replicate those that occurred during the global financial crisis. The tests results show that this private bank is highly resistant to liquidity risk, despite significant losses on its investment portfolio. The stress tests prove once again, and especially after the 2008 financial crisis, that they are indispensable tools in the management of banking risks and against systemic risks.

Association between HLA and SARSCOV- 2 infection in Mexican Mestizos

The Acute Respiratory Syndrome caused by the new coronavirus described in Wuhan, China in 2019 is a viral, respiratory multifactorial infectious disease, which presents different stages depending on genetic and environmental factors that influence severity. As December 19, 2022, 653,192,573 COVID-19 cases worldwide and over six million deaths;330,795 occurred in Mexico, were reported. Our aim was to analyze the contribution of HLA in Mexican patients infected with COVID-19, categorized in different clinical subgroups. A total of 114 COVID-19 patients and 164 healthy controls, all of them Mexican Mestizos from the highlands, were included in the study;RNA columns were used for extraction, and real-time PCR method was performed for the virus identification. DNA was isolated with the Maxwell16 system and 11 HLA loci were typed using NGS (CareDx, Immucor, and One Lambda). The subjects included: 22 asymptomatic, 86 symptomatic and 109 who were previously vaccinated. We compared controls versus positive patients;versus symptomatic;vaccinated negative versus vaccinated positive;controls versus asymptomatic;asymptomatic versus symptomatic individuals. The significant high risk alleles were A*29:02 (OR = 3.95), B*45:01 (OR = 6.92), C*03:04 (OR = 2.24). DPB1*03:01(OR = 3.17) is a susceptibility marker in vaccinated and unvaccinated patients. The latter is prevalent in Hispanics, Russia, Finland, Spain and the United Kingdom. DQA1*02:01 (p = 0.009, OR = 1.96;DQB1*02:02 (p = 0.009, OR = 2.13) was a susceptibility marker in infected patients who were vaccinated. This is prevalent in Argentina, Brazil, Algeria, Australia, Canada, and China, while high-risk B*45:01 and C*03:04 are prevalent in India, Israel, Eastern Europe, and Mediterranean countries. Protective alleles where DRB1*04:01, A*02:01, DQB1*03:01 and DPB1*02:01. These data are relevant to prioritize vaccination, according to the HLA profile in Mexicans, therefore these data are relevant for the epidemiology of COVID-19.

Perception and Knowledge of Algerian Students about Climate Change and Its Putative Relationship with the COVID-19 Pandemic: A Preliminary Cross-Sectional Survey

Background: Climate changes (CC) is one of the most important insidious crises affecting all countries in the world in the 21st century, including Algeria, and it is projected to affect many people in the future. Mitigation of the effects of this phenomenon will certainly involve environmental education, especially among university students. Therefore, evaluating their level of knowledge could help us understand to what extent they are prepared to contribute in the global efforts to fight against this catastrophe. Objective: The current study aims to investigate the perception and knowledge of Algerian students about climate change and its potential relationship with the COVID-19 pandemic. Methods: An online cross-sectional survey was conducted on a sample of 204 Algerian students by adopting snowball sampling during the academic year (2022/2023), with a questionnaire based on Google Forms. Data were analyzed using SPSS software. Results: The results obtained showed that 95.6% of the students asked had heard about this phenomenon and more than 90% perceived that it was really happening. The level of knowledge is significantly associated with age, where students aged between 20 and 30 years old had a lower level of knowledge than those over 30 years old (OR = 0.22, p = 0.027). Furthermore, students of the Humanities have shown the lowest level of knowledge compared to those of other domains. Regarding their attitude, only 31.8% of the asked students declared that they changed their attitude positively during the COVID-19 pandemic. The change in attitude and concern is statistically associated neither with the level of knowledge and perception nor COVID-19 affection, psychological impact, and uptake of the COVID-19 vaccine. Conclusion: The study concluded that there was a high level of awareness and a medium level of knowledge about CC among Algerian university students. However, most of them were either very worried or a little worried about this phenomenon. It was also suggested that the average level of knowledge about cause and effect and pandemic resistance could be attributed to the scientific study path of students from the study sample. The results of this study could be used as a baseline for future research into CC knowledge and perception in Algeria.

A chorem-based approach to visualizing COVID-19-related data

Due to the increasing availability and openness of data from many countries worldwide, visualizations of the COVID-19 pandemic that aim to track the virus over time and across geographic areas are multiplying;geovisualization is proving to be an effective solution to better understand the spread of SARS-CoV-2. However, due to the resulting "infodemic,” many visualization approaches are sub-optimal. For example, direct projections of COVID-19-related data on display are unsound from a cartographic point of view;the results are often overcomplicated, leading to cognitive overload, which may in turn, lead to misinterpretations. Thus, developing effective geovisualization methods is necessary to improve epidemiologists' and local authorities' decision-making abilities. This study proposes a novel approach to geovisualizing COVID-19-related data based on chorems. Our objective was to define a chorematic map that could represent, through visual summaries extracted from the analysis of COVID-19-related data, the origin of the first cases and evolution of the virus in Algeria during the first months of the pandemic. Accordingly, we propose a geovisualization methodology based on spatial data mining techniques and GIS technology. © 2023 Cartography and Geographic Information Society.

Telepsychiatry in the Arab world: A viewpoint before and during COVID-19

Purpose: Telepsychiatry, a subset of telemedicine, has been increasingly studied to meet the growing demands for psychiatric care. The utility of telepsychiatry is relevant now more than ever as the world endures the COVID-19 global pandemic. This paper describes the prior state and the changes that the COVID-19 outbreak brought to telepsychiatry in a selected group of Arab countries of the Middle East and North Africa (MENA) region. Patients and Methods: We invited twelve early-career psychiatrists from different Arab nations to share information related to telepsychiatry in their respective countries before and during the COVID-19 pandemic. The information was collected using a semi-structured guide. This was complemented by a search for relevant articles in five search engines using terms such as "COVID-19," "telepsychiatry," and "Arab world". Results: Before the pandemic, digital mental health services were provided in several Arab countries, mainly through hotlines and messaging services. The COVID-19 pandemic has marked a major shift in digital psychiatric services in the Arab MENA world, through the transformation of many clinics and some hospitals into digital mental health systems. Many non-governmental organizations also started remote initiatives for psychological support and psychiatric counseling. Three main barriers of patient-related, healthcare-related, and system-related hurdles of using telepsychiatry emanated from the analysis. Conclusion: The use of digital mental health services varies between different Arab countries. Even though some nations have laws that regulate the provision of such services, most struggle with multifactorial barriers. As affordable and attainable solutions cannot only rely on training and recruiting more psychiatrists, telepsychiatry would help meet the exceeding demands in the Arab world, particularly after the COVID-19 outbreak. (PsycInfo Database Record (c) 2022 APA, all rights reserved)

Severe Acute Pancreatitis Associated with Weil's Disease

Leptospirosis is an emerging zoonosis of worldwide importance. Its distribution is closely linked to hydrometric conditions. It is characterized by a wide clinical range, from the subclinical form, or one with few symptoms;which resolves spontaneously, to the multi-visceral form, known as icterrohemorrhagic disease or Weil's disease, with a lethal risk. All organs can be affected but with variable frequency. Pancreatic involvement is not well documented. We describe a 45-year-old man with Weil's disease associated with acute necrotizing pancreatitis. The evolution was favorable but required a three-week stay in the intensive care unit.

Hospitality managers in turbulent times: The COVID-19 crisis

Purpose: This study aims to explore the role General Managers (GMs) play in mitigating the effects of the unprecedented COVID-19 pandemic. Design/methodology/approach: Qualitative structured interviews conducted online with 50 hospitality GMs from 45 countries are used to explore the impact of the pandemic on the industry's operational norms and the role of managers in both managing the crisis and planning contingencies for recovery. Findings: The findings enhance the conceptual capital in this emerging field and provide insights on how GMs behave during crises. Four related sub-themes emerged from the data analysis, namely, contingency planning and crisis management, resilience and impact on GM roles, the impact on hotels' key functional areas and some GMs' suggestions for the future of luxury hospitality. Research limitations/implications: This study generates empirical data that inform contemporary debates about crisis management and resilience in hospitality organizations at a micro-level operational perspective. Practical implications: Findings suggest that, in times of uncertainty and crisis, luxury hotel GMs are vital in coping with changes and leading their organizations to recovery. GMs' resilience and renewed role and abilities enable them to adapt rapidly to external changes on their business environment. Originality/value: This study is unique in terms of scale and depth, as it provides useful insights regarding the GM's role during an unprecedented crisis such as COVID-19. (PsycInfo Database Record (c) 2023 APA, all rights reserved)

World textile and apparel trade and production trends: Egypt, Morocco, Tunisia and Turkey

Textile and clothing exports from Egypt shot up by 36.4% in 2021. The rise represented a recovery after exports had declined by 13.4% in 2020—reflecting the impact of the COVID-19 pandemic. There were increases in exports in 2021 to most of Egypt's major markets, including Algeria, Canada, China, the EU, India, Libya, Saudi Arabia, Sudan, Tunisia, the UAE, the UK and the USA. Furthermore, strong growth was recorded in 2022 in sales of Egyptian textiles and clothing in the EU import market in the first half of the year and in the US import market in the first nine months of the year. Textile and clothing exports from Morocco rose by 25.9% in 2021 following a 17.3% fall in 2020. The rise in 2021 reflected increases in exports to almost all of Morocco's major markets, including the EU, Mauritania, Senegal, Tunisia, Turkey, the UK and the USA. Furthermore, in 2022 there was strong growth in sales of Moroccan clothing in the EU import market in the first half of the year and in the US import market in the first nine months of the year. Textile and clothing production in Morocco rose significantly in 2021 after declining in 2020. It was down in the first quarter of 2022 but was up sharply in the second quarter of 2022. Textile and clothing exports from Tunisia increased by 12.0% in 2021 following a 7.3% decline in 2020, and during January-July 2022 they were up by 20.8%. The increases in 2021 and during January-July 2022 reflected, primarily, trends in clothing exports while, geographically, they reflected trends in sales in the EU, UK and US markets. Production by Tunisian textile, clothing and fur manufacturers, meanwhile, rose by 10.8% in 2021 and during January-September 2022 it was up by 18.5%. Textile and clothing exports from Turkey rose by 26.1% in 2021 and during January-September 2022 they were up by 6.4%. The rise in 2021 reflected increases in exports to almost all of Turkey's major markets, including Belarus, Egypt, the EU, Iran, Iraq, Israel, Kazakhstan, Pakistan, Russia, the UAE, the UK, Ukraine and the USA. Furthermore, in 2022 there was strong growth in sales of Turkish clothing in the EU import market in the first half of the year, although growth in sales in the US import market slowed to just 0.8% in the first nine months of the year. Clothing production in Turkey rose by 24.0% in 2021 and was up by 33.4% during January-September 2022. Textile production, meanwhile, increased by 20.5% in 2021 but during January-September 2022 it inched down by 0.1%. © Textiles Intelligence Limited 2022.

Physical Activity and Selected Psychological Constructs of Intercultural Students in the Field of Physical Education During the Covid-19 Pandemic

The purpose of the study was to compare anxiety, depression, self-efficacy and mood between students at the Faculty of Physical Education in Poland and Algeria during the Third Wave of the COVID- 19 Pandemic, as well as to compare the intensity and quantity physical activity. It was also important to examine relationships between self-efficacy and other psychological variables, and self-efficacy and physical activity in the two groups. The following questionnaires were used to assess psychological constructs, self-efficacy and physical activity level: Mood State Profile (POMS), depression (Beck Depression Inventory), anxiety states (STAI), self-efficacy (GSES), a physical activity questionnaire. The research results show that there where statistically significant differences between Polish and Algerian students in anxiety and mood state. There were also statistically significant differences between the groups in the intensity and quantity physical activity. Based on the results of students' self-efficacy in relation to states of mood, it turned out that anger and vigour are a significant predictor of a sense of self-efficacy of Algerian student, but among polish students only vigour is a significant predictor of a sense of self-efficacy. The comparative study showed statistically significant differences in each of the mood scales. In data on physical activity during the pandemic, all variables showed statistical significance, but physical activity did not turn out to be a significant predictor of psychological variables in the study. It can be assumed that undertaking increased physical activity is a kind of preventive measure in reducing mood disorders and relieving depressive episodes. © 2023 Sciendo. All rights reserved.

The fishery and aquaculture sectors affected by the COVID-19 crisis in the Maghreb

According to five national reports prepared by the Food and Agriculture Organization (FAO) Subregional Office for North Africa, the Maghreb fishery and aquaculture sectors experienced a significant decline in activity in 2020 due to the COVID-19 pandemic. The reports are based on a survey conducted in four Maghreb countries: Algeria, Mauritania, Morocco and Tunisia, which all experienced a drop in production and income in 2020. The reports also showed that consumption shifted towards canned, frozen and processed fish at the expense of fresh products, especially at the beginning of the pandemic. This consumer behaviour impacted fish demand and prices.